基于Ripley′K函数的延吉市区崩塌地质灾害空间格局研究

摘要

崩塌是较为严重的一种地质灾害，研究崩塌体的空间格局有利于政府部门对其做出防治决策。本文基于最新时相的延吉市区高分1号遥感影像，从崩塌地质灾害成灾机理的角度，选取了如植被指数、土壤亮度指数、坡度等主要指标，并结合了前人对崩塌影像光谱特征的研究成果，建立了本次的自动化解译模型，在成功提取崩塌体后，经过栅矢数据转换，选用ArcGIS 10软件的K函数分析模块，进行了崩塌灾点的空间格局分析。%Rockslide is a kind of serious geological disasters.Researching on rockslide′s spatial pattern is advantage to government make strategic for its control.The paper was created an automatic extraction by some indicators:vegetatation index, soil brightness in-dex, slop etc., based on rockslide mechanism and other existing researches.Using raster to vector module of Envi4.8 software after successful extracting rockslide-body, and to receive spatial pattern of rockslide by using ArcGIS10 software′s K function.